WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Power, Ground, Clock Schematics
Courtesy of GENERAL MOTORS CORP.
Fig 2: Indicators Schematics
Courtesy of GENERAL MOTORS CORP.
Fig 3: Inflatable Restraint I/P Module Indicator, Telltale Assembly Info Center, Driver Information Display Schematics